Not APAP, DS 700 is an older M series auto bi level machine by Respironcis
If looking for Respironcis machine, choose one have "Phillips" and "System one" in the name ... 60 series superseded 50 series

As Zonk suggests, the current model is the Philips Respironics System One 60 Series DS760HS. All the machines in this series are auto BiPAP and can operate in CPAP and manual bilevel mode. The old M-series used a Smartcard for data recording, and requires a Mako DT3500 card reader to use the therapy data with Encore software.

Edit to add, if you want to run it as an auto CPAP you only need to define in settings a minimum EPAP and maximum IPAP to define the pressure range, and then set the pressure support to zero.

A BiPAP machine allows the air that is delivered through the mask to be set at one pressure for inhaling and another for exhaling. This makes it much easier for the user to adapt to the apparatus and allows a person who has a neuromuscular disease to use the device. These dual settings also allow the user to get more air in and out of his or her lungs.

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